[Haskell-cafe] "--" comments

Daniel Peebles pumpkingod at gmail.com
Fri Dec 11 23:33:41 EST 2009


let (--*) = (+) in 5 --* 6
===> 11

The comment is introduced by -- followed by a non-symbol (because if
followed by a symbol, it might be an operator)

Hope this helps!

Dan

On Fri, Dec 11, 2009 at 11:30 PM, michael rice <nowgate at yahoo.com> wrote:

> I'm just noticing that "--" comments don't seem to work properly when the
> first character following them is a '*'.
>
> Michael
>
>
> --*I like asterisks
> --*I like asterisks
> --*I like asterisks
> --*I like asterisks
>
> double x = x+x
>
>
> Prelude> :l double
> [1 of 1] Compiling Main             ( double.hs, interpreted )
>
> double.hs:1:0: parse error on input `--*'
> Failed, modules loaded: none.
> Prelude>
>
>
>
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